In this video, we're going over the top five
problems on this 2003 to 2009 Toyota Sienna. Number one, the O2 sensors, or the way Toyota
likes to describe them as Air Fuel Ratio Sensors. You're gonna have one right down here on the
exhaust manifold in the front of the vehicle, and you'll have one on the backside as well. As far as symptoms, you may have some drivability
issues but you'll definitely have a check-engine light with a code P2197.
In general, these sensors are fairly easy
to replace. You just need an O2 sensor socket, disconnect
the connector, replace them, and you should be good to go. While we're under the hood, let's talk about
the second problem, which is the MAF sensor, which is located right here on the airbox. You may notice some drivability issues, a
little bit of hesitation, and a check-engine light with a code P0101. There's a couple of things you can do to fix
this condition. You can remove the Mass Air Flow sensor itself
and clean it with some Mass Air Flow sensor cleaner, re-install it, make sure your air
filter is clean.
The reason why they get dirty is normally
because the air filter is not clean, not doing its job. And if that doesn't fix it, you're gonna have
to replace the MAF sensor. Number three, the ignition coils. Now those are located…there's three on this
side of the engine and three on the other side underneath the intake. To replace these coils, it's pretty simple,
on the front side of the engine. You just take the bolt out, disconnect the
connector, put the new coil in. It's always best to replace the spark plug
when you're replacing coils just for preventative maintenance. And the backside's gonna be a little bit trickier. You have to pull the intake off. And you wanna replace the gaskets when you
pull the intake off. Number four, the EVAP canister. It's still located underneath the vehicle. Right here in front of the fuel tank, there's
a little cover on top of that.
Take that down. So, if you get any type of EVAP code, this
is the common repair for that code. You always wanna check the gas cap. Make sure that the gas cap is not loose or
make sure the gas cap, the seal looks good. Sometimes it's easier to just replace the
gas cap and see if that fixes the problem before you go replacing this. Number five, the power sliding doors, which
obviously these are not working at this time. The reason why these power doors fail is because
of the wiring right here. They actually fray for moving back and forth
so much. So, that's what's gonna cause the issue. The only way to fix this is to replace the
wiring harness with the motor assembly.
So, there's the top five problems for this
Toyota Sienna. I hope you enjoyed this video. If you did, make sure you subscribe to our
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